<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>键盘事件</title>
    <link rel="stylesheet" href="../base.css">
    <link rel="stylesheet" href="./11.css">
</head>

<body>
    <div id="app">
        <div class="key_item">
            <div class="key_content">Press any key to get the keyCode</div>
        </div>
    </div>
</body>
<script src="./11.js"></script>

</html>